1052645431 has 4 divisors (see below), whose sum is σ = 1053063864. Its totient is φ = 1052227000.

The previous prime is 1052645383. The next prime is 1052645437. The reversal of 1052645431 is 1345462501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1052645431 - 2¹⁵ = 1052612663 is a prime.

It is a super-2 number, since 2×1052645431² = 2216124806810351522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1052645393 and 1052645402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052645437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205420 + ... + 210481.

It is an arithmetic number, because the mean of its divisors is an integer number (263265966).

Almost surely, 2^1052645431 is an apocalyptic number.

1052645431 is a deficient number, since it is larger than the sum of its proper divisors (418433).

1052645431 is an equidigital number, since it uses as much as digits as its factorization.

1052645431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418432.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1052645431 is about 32444.4976999182. The cubic root of 1052645431 is about 1017.2492302987.

The spelling of 1052645431 in words is "one billion, fifty-two million, six hundred forty-five thousand, four hundred thirty-one".